install docker in aws redhat7

编辑/etc/yum.reop.d/redhat-rhui.repo 文件，找到如下配置块。

[rhui-REGION-rhel-server-extras]
name=Red Hat Enterprise Linux Server 7 Extra(RPMs)
mirrorlist=https://rhui2-cds01.REGION.aws.ce.redhat.com/pulp/mirror/content/dist/rhel/rhui/server/7/$releasever/$basearch/extras/os
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
sslverify=1
sslclientkey=/etc/pki/rhui/content-rhel7.key
sslclientcert=/etc/pki/rhui/product/content-rhel7.crt
sslcacert=/etc/pki/rhui/cdn.redhat.com-chain.crt

把里面的 enabled=0 修改为 enabled=1。保存配置文件后，就可以使用下命令安装了。

>yum install docker

>yum install docker-registry

>systemctl start docker

>systemctl start docker-registry

> docker pull registry 

[root@ip-10-201-13-108 ~]# docker images
REPOSITORY           TAG                 IMAGE ID            CREATED             SIZE
docker.io/registry   latest              047218491f8c        3 weeks ago         33.17 MB

(has already started ,no need "

docker run -d -v /opt/registry:/var/lib/registry -p 80:5000 --restart=always --name registry docker.io/registry:latest

")

>docker ps -a
CONTAINER ID        IMAGE                       COMMAND                  CREATED              STATUS              PORTS               NAMES
1e48205808c2        docker.io/registry:latest   "/entrypoint.sh /etc/"   About a minute ago   Created                                 registry